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Monolithic Cr–V/TiO2/cordierite catalysts prepared by in-situ precipitation and impregnation for low-temperature NH3-SCR reactions

Paper ID Volume ID Publish Year Pages File Format Full-Text
51023 46826 2013 4 PDF Available
Title
Monolithic Cr–V/TiO2/cordierite catalysts prepared by in-situ precipitation and impregnation for low-temperature NH3-SCR reactions
Abstract

Cr–V/TiO2/cordierite monolithic catalysts for low-temperature NH3-SCR reactions were prepared by in-situ precipitation and impregnation. The adhesion and surface characteristics were examined using ultrasonic oscillation and scanning electron microscopy, respectively. The results showed that the TiO2 coating adhered well to cordierite by in-situ precipitation. If the loading of the active component, Cr–V, was at least 5.5% by weight, the catalyst achieved excellent SCR activity, with an NOx conversion above 90%, in the temperature range 160–300 °C. The Cr–V/TiO2/cordierite monolithic catalysts had relatively high stability in the presence of SO2.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► TiO2 coating prepared by binder-free in-situ precipitation adhered well to cordierite. ► Adhesion was enhanced by loading of Cr–V active component. ► Excellent SCR activity was obtained for a Cr–V loading of 5.5 wt.%. ► NOx conversion above 90% in the temperature range 160–300 °C was achieved. ► Cr–V/TiO2/cordierite monolithic catalysts had high stability in the presence of SO2.

Keywords
Low-temperature NH3-SCR; Cr–V/TiO2; Monolithic catalysts
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Monolithic Cr–V/TiO2/cordierite catalysts prepared by in-situ precipitation and impregnation for low-temperature NH3-SCR reactions
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 34, 5 April 2013, Pages 1–4
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us